Slide fastener socket



SLIDE FASTENER SOCKET Filed June 22, 1934 Invenib?! G/usZa Johnson, 29% a.

Lea

Patented Aug. 18 1 936 d-UNITED STATES PATENT OFFICE 1 2,051,715 SLIDE FASTENER SOCKET Gustav Johnson," West Roxbury, Mass assignor to United-Carr Fastener Corporatmm-Cambridge, Mass, a corporation of Massachusetts.

Application June 22, 1934, Serial No. 731,930 a Claims. (01. 24-77) My invention aims to .provide improvements .in slide fastener socket members for attachment to strapsand. the like.

In the drawing, which illustrates preferred embodiments of my invention:-- v

Figure l is a top plan view of a fastener assembly including one form of my improved socket;

Fig. 2 is a section taken on the line 22 of Fig; '1, showing the socket engagedwith a stud; I Fig. 3 isa bottom plan view of the fastener assembly shown in. Fig. 1; v

Fig. 4 is a section taken on the line 4-4 of Fig. 5 is a top plan view of another form of my improved socket assembled with a strap;

Fig. 6 is a cross-section taken on the line 66 of Fig. 5;

Fig. 7 is a bottom plan view of the socket and strap shown in Fig. 5; and

Fig. 8 is a section taken on the line 8-8 of Fig. '7.

Both the forms of my improved socket illustrated by the drawing show a simple, inexpensive, one-piece fastener socket of the slide fastener type, each having the advantage of a positive lateral locking means.

The embodiment of my invention as illustrated in Figs. 1 to 4 inclusive is formed from a single piece of sheet metal to provide a relatively thin plate having a pair of rectangular strapreceiving slots |--I (Figs. 2 and 3) transversely disposed thereof and located at opposite ends. These slots enable the socket to be adjustably attached to the carrying strap with which it is intended to be used. Between the slots l-l is located a stud-engaging means in which is formed a stud-receiving aperture of special shape 2. The specific socket shown is for use 40 with a rigid stud as shown in Fig. 2. Hence the stud-receiving aperture must be allowed to expand and contract. Between the stud-receiving aperture 2 and each of the sides of the socket I have provided slots 33 substantially parallel 45 to the sides. Also I have provided slits 44 extending from the aperture 2 outwardly toward each strap-receiving slot ll and parallel to the above-mentioned other slots 33. Thus the central portion of the socket is transformed 50 into a cross-bar member of two sections. The slits 4-4, with their terminal enlargements 5-5 (Fig. 3) cooperate with the slots 3-3 to make the aperture 2 yieldable and allow it to expand and contract laterally when a stud is forced through the aperture.

In Figs. 2 and 4 the stud-receiving aperture is shown as having a collar rolled up and so formed as to facilitate entrance of the stud into the aperture an'd also to provide a smooth bearing surface to keep the stud in proper position relative to the socket.

The aperture 2 is designed so that its extremities are of less width than its median opening (Figs. 1 and 3) When the socket is in use and engaged witha cooperating stud, and a'tension.

is put on the strap on either side of the socket, the constricted neck I of the stud (Fig; 2) will be forced into one of the narrow ends of the aperture and held there by the relatively large size of the head 6 and the relative rigidity of the socket at that point. When the socket and. stud are in the above-mentioned relation they are locked against separation by any other means than relieving the tension upon the strap. An ordinary snap fastener socket is so designed as to be readily disengaged from its cooperating stud at any time, whether or not there is a tension on the strap. Also the usual form of keyhole socket will dislodge itself if tension upon the strap is relaxed. My improved socket cannot be disengaged when there istension on the strap, nor will it disengage itself when the tension is relaxed. This feature is very useful where the socket is used on a strap extending from one side of a shoe across the instep and snapped tightly down on the other side of the shoe.

In the form of my improved fastener socket as shown in Figs. 5 to 8'inclusive, I have provided a plate 8. This plate 8 is provided with transversely disposed strap-receiving slots 99 at opposite ends and is further provided with an oval stud-receiving aperture l0 in a centrally located rectangular depressed portion H.

In the plate 8, I have provided a plurality of receiving aperture I0 and terminating in enlargements. These slits are for the purpose of rendering the material at the edges of the aperture l0 yieldable, so that the aperture may be enlarged when a stud is forced into it and contract again upon the constricted neck of the stud (Fig. 6). The slits l2 (Fig. '7) divide the depressed portion I l of the plate 8 into four leaves (Fig. '7), each of which is similar in shape and size to the one directly opposite. It will be seen that one pair of leaves (l3-I3) is wider than the other. It is upon these wide leaves that the collar is formed as shown in Fig. 8. This collar provides the same type of smooth bearing surface as described above in connection with the first mentioned form of my improved socket.

Since the socket is to be used with a rigid stud (Fig. 6), it is necessary to provide these opposite leaves (iii-l3) with a spring action. I have accomplished this by the combination of the curve made by the depressed portion ll and the raised collar (Fig. 8)

While I have illustrated and .described 'preferred embodiments of my invention, I do not wish to be limited thereto because the scope of my invention is best defined by thefollowing claims.

I claim:-

1. A slide fastener socket comprising a single plate having strap-receiving slots transversely disposed thereof and located atopposite ,ends, said socket having a stud-receiving aperture located between the slots and elongated in thecdirection of ,eachof the slots laterally yieldable stud-engagingineansim'ade yieldable by radial -slits extending outwardly from theaperture at equal angles to thelongituuinal axis ofthe'fso'clfet, said slits dividing said Stjiid-eiIgSJE HEImEafiS ifnto pairs 'of oppositely disposed leaves. the leaves of only .one of said pairs having a collarjportion at the edges. adjacent to said aperture to facilitate engagement of -a stud withjsaidsstud-engaging means, and saidLplate'havinga depression located between the strap-reee'i'ving slots "forfthe' purpose I of rendering the portions of the .platebetween the said radial slits more yield'able' and "to iinpartja "spring action to said sections.

2. -A slide fastener socket comprising a single :of pairs of leaves, the leaves of one of said pairs being wider than the leaves of said other pairs and said w'i'de leaves having the free edges adjacent said aperture sobent as to provide a springg-ljpping action upon the cooperating stud.

3. :Aslid-e fastener socket comprising a single plate having strap-receiving slots transversely disposed "at opposite ends thereof, said socket having a stud-receiving aperture located between the slots and elongated in the direction of at least 20 one of said slots, *sa'idplatefibeing divided by slits extending-outwardly from the aperture to form laterally yieldable stud-engaging means adjacent "to said aperture, said *stu d-engag'ingmeans comprising two pairs of "leaves, the leaves 'of one of said .2

pairs seine located opposite -'to each other and having their free edgesadja'cent to the-longitudinal edge of said aperture, each of the leaves of said last-mentioned pafir being wider than jthe leaves of said otherpair 'an'd havingja 'collar bent from "the free edge thereof I facilitate errgagement of a stud with said socket.

US V OHN 91$ 

